DuPont™ Teflon ® PTFE DISP 30 Fluoropolymer Resin www.fuelcellstore.com PTFE aqueous dispersion [email protected] (979) 703-1925

Product Information

Product Description DISP 30 is formulated to provide good rewetting on each pass.

® Each coating layer is usually dried to remove water (typically at DuPont™ Teflon PTFE DISP 30 is a milky white aqueous PTFE 120 °C [250 °F]), baked to remove the wetting agent (typically at dispersion stabilized with a non-ionic surfactant. It is a general- 270 °C [518 °F]), sometimes calendered, and finally heated purpose product, often preferred for coating and impregnating above the crystalline melting point of the resin particles woven goods and for some coating processes. It imparts (approximately 337 °C [639 °F]). properties unique to PTFE resin to porous structures, as well as to base materials when used as an additive. When properly Products utilizing entrained PTFE resin particles only for their processed, the PTFE resin in DISP 30 exhibits the superior lubricating or hydrophobic properties are dried and baked, but not properties typical of the fluoropolymer resin: retention of heated above the crystalline melting point of the particles. For properties after service at 260 °C (500 °F), and useful properties example, rope-like products, such as shaft packings, can be at –240 °C (–400 °F). made from braided yarn in a variety of cross sections. The dispersion wets internal surfaces and promotes penetration of DISP 30 aqueous dispersion provides: the small PTFE particles. The unmelted particles are sheared and • inertness to nearly all industrial chemicals and solvents retained as an impregnant, even when compressed in service and exposed to steam or chemicals. Unmelted particles can also • stability at high temperatures improve flexibility and flex life in woven fabrics used in hot-gas filtration applications. • excellent dielectric properties Other solid or liquid ingredients can be added to DISP 30 to • lowest coefficient of friction of any solid material provide specific processing or finished product behavior. • excellent weatherability Safety Precautions • non-stick characteristics Before processing any fluoropolymers, read the Material Safety Typical Applications Data Sheet, available upon request from our Customer Care • Coated woven fiber-glass fabric used in architectural, Group at (800) 207-0756 in the US or (302) 996-7906 (outside high-performance industrial, food processing and electronics of the US). Also read the detailed information in the latest applications edition of the “Guide to the Safe Handling of Fluoropolymer Resins,” published by the Fluoropolymers Division of The • Impregnated packing made from braided fibers for severe Society of the Plastics Industry (www.fluoropolymers.org) or chemical and thermal service by PlasticsEurope (www.plasticseurope.org). • Cast film for capacitor dielectrics or chemical barriers Storage and Handling • Surface coatings for metallic or other high-temperature substrates DISP 30 must be properly stored to maximize the stability of the dispersion. The PTFE particles will settle on prolonged standing • Anti-drip additive for plastics and/or on prolonged heating - temperatures above 40 °C (104 °F) • Binder for battery anode or cathode matrixes should be avoided. The dispersion must be protected from freezing, which will cause irreversible settling. The optimum Food Contact Compliance storage temperature range is 7–24 °C (45–75 °F). If dispersions are to be stored for extended periods, lower-temperature storage Properly processed products (sintered at high temperatures is desirable. For optimal performance, DISP 30 should be gently common to the industry) made from DISP 30 resin can qualify for mixed or rolled monthly and prior to use. use in contact with food in compliance with FDA 21 CFR 177.1550 and European Regulation (EU) No 10/2011. For details Ammonium hydroxide is used by DuPont to set the pH to and information, please contact your DuPont representative. 9.5-11.0 at the time of shipment. High ambient temperatures can deplete the ammonium hydroxide level and reduce the pH. Declining pH eventually favors bacterial growth, which causes Processing odor and scum. The pH of opened containers should be Conventional dip or flow techniques can be used for coating measured and maintained between 9.5 and 11.0. or impregnating high temperature fabrics, fibers and other products with DISP 30. A continuous PTFE resin coating on woven fabrics made of fiberglass, Nomex® aramid fiber, Kevlar® aramid fiber, or other high-temperature resistant fibers can be made by dip coating. Multiple passes may be used to build the desired thickness to produce a smooth, crack-free coating. Typical Property Data for DuPont™ Teflon® PTFE DISP 30 Fluoropolymer Resin Property Test Test Method Unit Typical Value Solids Content (% PTFE by weight) ASTM D 4441 ISO 12086 % 60 Density of Dispersion (at 60% solids) ASTM D 4441 ISO 8962 g/cm3 1.51 Surfactant Content on PTFE solids ASTM D 4442 ISO 8963 % 6 Dispersion Particle Size, average diameter DuPont μm 0.220 pH of Dispersion ASTM E 70 ISO 1148 10 Standard Specific Gravity of Sintered Resin ASTM D 4895 ISO 12086 2.220 Brookfield Viscosity (at 25°C) ASTM D 2196 ISO 2555 mPa·s 25

Note: PTFE DISP 30 meets the requirements of ASTM D 4441-04, type II, grade 6, class A. Typical properties are not suitable for specification purposes.

High-speed stirring, pumping, or any other violent agitation must CAUTION: Do not use DuPont materials in medical applications involving be avoided to minimize sheared particles or coagulation and to permanent implantation in the human body or contact with bodily fluids or tissues minimize foaming. Ideally, the dispersion should be conveyed by unless the material has been provided from DuPont under a written contract that is consistent with DuPont policy regarding medical applications and expressly gravity from storage to processing stations. acknowledges the contemplated use. For further information, please contact your Storage and handling areas should be clean. Keep dispersion DuPont representative. You may also visit www.teflon.com/industrial to download a copy of the “DuPont POLICY Regarding Medical Applications” H-50103-3 and drums closed and clean to avoid both contamination and “DuPont CAUTION Regarding Medical Applications” H-50102-3. coagulation by drying at the liquid surface. High processing temperatures will cause even very small foreign particles to For medical emergencies, spills, or other critical situations, call 1.800.441.7515 become visible or to make defects in finished products. Good within the United States. For those outside of the United States, call housekeeping and careful handling are essential. 1.302.774.1000. The information set forth herein is furnished free of charge and is based on Packaging technical data that DuPont believes to be reliable. It is intended for use by persons having technical skill, at their own discretion and risk. The handling DISP 30 is packaged in 30 and 114-L (8 and 30 gal) non- precaution information contained herein is given with the understanding that returnable drums and 1000-L (264-gal) recyclable containers. those using it will satisfy themselves that their particular conditions of use Contact the local DuPont sales office for package sizes available present no health or safety hazards. Because conditions of product use are in your specific geographic area. outside our control, DuPont makes no warranties, express or implied, and assumes no liability in connection with any use of this information. As with any material, evaluation of any compound under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate under or a recommendation to infringe any patents. NO PART OF THIS MATERIAL MAY BE REPRODUCED, STORED IN A RETRIEVAL SYSTEM OR TRANSMITTED IN ANY FORM OR BY ANY MEANS ELECTRONIC, MECHANICAL, PHOTOCOPYING, RECORDING OR OTHERWISE WITHOUT THE PRIOR WRITTEN PERMISSION OF DUPONT.

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